Drill-rod-joint connection



June 16, 1925. 1,542,266

W. H. PALMER ET AL DRILL ROD JOINT CONNECT ION- Filed Jun; 20, 1921 INVENTORJ MAL/4M H P/IA Mi? 156M 20 W- PAL fifffl ATTORNEY Patented June 16, 1925.

UNITED STATES 1,542,266 PATENT OFFICE.

WILIJILI H. PALIER AND EDWARD w. PALMER, OF SAN DIEGO, CALIFORNIA.

DBILL-BOD-JOINT CONNECTION.

Application fled June 20, 1921. Serial No. 478,939.

To all whom it may concern:

Be it known that we, WILLIAM H. Panama and EDWARD W. PALMER, of the United States, residing at San Diego, in the county of San Diego and State of California, have invented a certain new and useful DrilhRod- Joint Connection, of which the following is a s ification.

ur invention relates to a means for connecting the joints of sectional drill rods and the objects of our invention are; first, to provide a connection for the jointsof drill rods which is positive in its action and will not permit the drill rod sectlons to come apart at the joint; second, to provide a novelly constructed drill rod joint connection; third, to provide a device of this class in which the joint is locked by means of a lock plug and fourth, to provide a device of this class which is very simple and economical of construction, durable, easy to install, sitive in its action and which will not readi y deteriorate or get out of order.

With these and other objects in view as will appear hereinafter, our invention consists of certain novel features of construction, combination and arrangement of parts and portions as will be hereinafter described in detail and particularly set forth in the appended claims, reference being bad to the accom an ing drawings and to the characters of ref e rences thereon which form a part of this specification in which 2- Figure 1, is a longitudinal sectional view of a tool joint connection showing the device fragmentarily and hollow in form for hydraulic purposes. Fi 2 is a sectional view through 22 of 1g. 1. Fig. 3 is a longitudinal sectional view of our tool joint shown solid and not to be used for hydraulic purposes and Fig. 4 is a transverse sectional view thereof through 4-4 of Fig. 3.

Similar characters of reference refer to similar parts and portions throughout the several views of the drawings.

The internal connecting member 1, external connecting member 2 and lock bushing 3 constitute the rincipal parts and portions of our drill rod joint connection.

The external connection member 2 is a hollow member as shown best in Fi 1 and 2 of the drawings. It is provid in one end with threads 2" adapted for the bushing 3 and with a decreased diameter portion 2" forming a shoulder 2. This decreased diameter portion 2 is tapered, decreasing in diameter downwardly and this portion is provided with a plurality of slots 2. In this case we have shown 4. The other end of this member 2 from the threads 2 is of smaller internal diameter than the threaded portion but of larger diameter than the lower end of the portion 2". Secured in this lower end of the portion 2 is the drill rod A. It is rigidly secured thereto by shrinking thereon or by any means for rigidly securing it to the same. Mounted in this member 2 is the internal connection member 1, the inner end of which is tapered conforming to the taper on the portion 2 and it is provided with a plurality of outwardly extending tapered lug portions 1 which conform to the grooves 2 in the member 2 and fit therein, locking the members against torsional movements relatively to each other. This member 1 is provided with an outwardly extending flange 1, the one side of which is adapted to rest against the shoulder 2, when fitted tightly therein, in which position the portion 1 fits snugly into the portions 2 and the lugs 1 fit snugly into the grooves 2. This member 1 is held rigidly in position in the member 2 by means of the bushing 3 which is adapted to revolve around the member 1 but is externally threaded adapted for the internal threads in the member 2. This bushin is screwed down tightly against the one si e of the flange 1. Tl'llS member 3, it will be noted serves to secure the member 1 rigidly into the member 2 and the lugs 1 in the grooves 2 prevent the members 1 and 2 from turning relatively to each other. Thus it will be noted that the drill rod may be turned in either direction without in any way afi'ectin the joint, and that the joint is as secure an rigid in either direction. On the other end of the member 1 the drill rod is secured by shrinking thereon or by any other means for rigidly securing it thereto. In the modified form of construction as shown in Figs. 3 and 4 of the drawing it will be noted that the member 1 is not hollow but solid showing the application of the device to either a solid or hollow drill rod.

Though we have shown and described a particular construction, combination and arrangement of parts and portions and certain modifications thereof, we do not wish to be limited to this particular construction, combination and arrangement, nor to the modification thereof, but desire to include or the l' 'bers together forcing the taperedportions of the ,two members together so that they are very rigid in their relation.

Having thus described our invention what we claim as new and desire to secure by Letters Patent is:-

1. A drill rod connection, including a hollow exterior member provided with an interior tapered portion provided with grooves in said tapered portion, and an internal thread in one end thereof, an internal member provided with a taper conforming to the taper in said external member and provided with outwardly extending lugs adapted to fit snugly into said grooves,

' and provided with an outwardly extending annular flange adapted to fit snugly against the shoulder formed at the upper end of the said tapered portion and a bushing threaded on its outer side adapted to be screwed between the exterior and interior flange.

2. In a drill rod connection, an external hollow member secured against torsional movement to a drill rod section and provided with an internally tapered flange portion provided with grooves in said tapered portion, an internal connection member provided with an annular flange intermediate its en'ds secured against torsional movement to another drill rod sectionand pro vided with a tapered end-conforming to the taper in said external member and provided with outwardly extending lugs adapted to fit the grooves in said tapered flange portion, and a lock bushing of smaller exterior diameter than said external member adapted to be screwed into said external member and rest against the flange of said internal connection member whereby said members are rigidly secured together against torsional and lateral movement. I

In testimony whereof, we have hereunto set our hands at San Diego, California this 13th day of June 1921.

WILLIAM H. PALMER. EDWARD W. PALMER.

connection members and fit against said 

